Best Travel Laptop for underwater photographers

Right now I'm trying to choose a new laptop. I'm an underwater photographer.

The main use of the laptop is during photography trips, for that i need very good battery time, lightweight and true color monitor.

In my travel i use photoshop, lightroom, premiere. I can work with windows or OS X, despite being more dependent on OS X right now....iphone, imac and macbook pro...automatic synchronise of contacts, emails, photos, etc.

I have just replaced a macbook air with a Microsoft surface pro which in my opinion leaves the Mac way behind. It is light with a detachable keyboard which then puts the laptop into tablet mode and reportedly a 13 hr battery lfe. Screen quality is superb and a pen allows for fine editing and photo manipulation. OS is Windows 10 and running Lightroom 6. No issues with performance / speed. There are quite a few versions in the Surface Pro range so a few to choose from.

I have just replaced a macbook air with a Microsoft surface pro which in my opinion leaves the Mac way behind. It is light with a detachable keyboard which then puts the laptop into tablet mode and reportedly a 13 hr battery lfe. Screen quality is superb and a pen allows for fine editing and photo manipulation. OS is Windows 10 and running Lightroom 6. No issues with performance / speed. There are quite a few versions in the Surface Pro range so a few to choose from.

I'll put in my vote for the Surface Book2 15" model. I've used this on a number of photo expeditions and love it. There are a couple of things about this device that none of the other options offer:

1) Best screen on the market at nearly 4K and a 3:2 aspect ratio at 15 inches. This means it is taller than the 16:9 in most laptops. This is Ideal for Lightroom and photoshop

2) Built in full SD-Card reader. No need for dongles and external card readers if you shoot on SD Cards, which is pretty common.

3) The CPU is in the screen which means the keyboard and base remain very cool and comfortable to use under heavy workloads. (Try holding a MacBookPro on your lap during a Lightroom batch export or Video render. HOT!)

Not unique, but Nvidia 1060 GPU and 4-Core I7 CPU with NVMe SSD make it super fast.

I just bought a Lenovo. The reason I mention this is that I semi-turfed my Mac Airbook in a beach landing in Costa Rica. The crew semi-doused my computer bag, I know, should have carried it myself. The Airbook worked okay in the States, but every time I went to a tropical location, it would get cranky, often refusing to boot up. On my last trip it wouldn't boot at all, and the new battery, I just installed, quit working when I came back. Enough. I researched tough books, laptops that are hardened to resist water, dropping etc. The problem is that they are very expensive, for my budget, They start at $3,500 and go up, but they are essentially military grade. Lenovo has a compromise computer that is hardened, but not as much as the tough books. It can take a significant drop and some light water. So far I'm happy with it, but I'm not video editing.

Just be aware when choosing your laptop that a high res screen makes pre-CC versions of photoshop pretty much unusable as the fonts for the menus and the tool icons are not scalable. I still use CS6 (no plans to ever get onboard the subscription wagon) and that is only usable on lower res screens. Not sure what the situation is with Lightroom.

Macbook Air is the way to go. I work with the full adobe suite and my MA is perfect for travel. The only downfall is the limited storage space so worst case scenario just grab an external SSD and you're all set.